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Full support for Ginger Console
[linux-ginger.git] / arch / powerpc / kernel / power5-pmu.c
blobc351b3a57fbb3361cb04103e95f514b86dcaff52
1 /*
2 * Performance counter support for POWER5 (not POWER5++) processors.
3 *
4 * Copyright 2009 Paul Mackerras, IBM Corporation.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11 #include <linux/kernel.h>
12 #include <linux/perf_event.h>
13 #include <linux/string.h>
14 #include <asm/reg.h>
15 #include <asm/cputable.h>
16
17 /*
18 * Bits in event code for POWER5 (not POWER5++)
19 */
20 #define PM_PMC_SH 20 /* PMC number (1-based) for direct events */
21 #define PM_PMC_MSK 0xf
22 #define PM_PMC_MSKS (PM_PMC_MSK << PM_PMC_SH)
23 #define PM_UNIT_SH 16 /* TTMMUX number and setting - unit select */
24 #define PM_UNIT_MSK 0xf
25 #define PM_BYTE_SH 12 /* Byte number of event bus to use */
26 #define PM_BYTE_MSK 7
27 #define PM_GRS_SH 8 /* Storage subsystem mux select */
28 #define PM_GRS_MSK 7
29 #define PM_BUSEVENT_MSK 0x80 /* Set if event uses event bus */
30 #define PM_PMCSEL_MSK 0x7f
31
32 /* Values in PM_UNIT field */
33 #define PM_FPU 0
34 #define PM_ISU0 1
35 #define PM_IFU 2
36 #define PM_ISU1 3
37 #define PM_IDU 4
38 #define PM_ISU0_ALT 6
39 #define PM_GRS 7
40 #define PM_LSU0 8
41 #define PM_LSU1 0xc
42 #define PM_LASTUNIT 0xc
43
44 /*
45 * Bits in MMCR1 for POWER5
46 */
47 #define MMCR1_TTM0SEL_SH 62
48 #define MMCR1_TTM1SEL_SH 60
49 #define MMCR1_TTM2SEL_SH 58
50 #define MMCR1_TTM3SEL_SH 56
51 #define MMCR1_TTMSEL_MSK 3
52 #define MMCR1_TD_CP_DBG0SEL_SH 54
53 #define MMCR1_TD_CP_DBG1SEL_SH 52
54 #define MMCR1_TD_CP_DBG2SEL_SH 50
55 #define MMCR1_TD_CP_DBG3SEL_SH 48
56 #define MMCR1_GRS_L2SEL_SH 46
57 #define MMCR1_GRS_L2SEL_MSK 3
58 #define MMCR1_GRS_L3SEL_SH 44
59 #define MMCR1_GRS_L3SEL_MSK 3
60 #define MMCR1_GRS_MCSEL_SH 41
61 #define MMCR1_GRS_MCSEL_MSK 7
62 #define MMCR1_GRS_FABSEL_SH 39
63 #define MMCR1_GRS_FABSEL_MSK 3
64 #define MMCR1_PMC1_ADDER_SEL_SH 35
65 #define MMCR1_PMC2_ADDER_SEL_SH 34
66 #define MMCR1_PMC3_ADDER_SEL_SH 33
67 #define MMCR1_PMC4_ADDER_SEL_SH 32
68 #define MMCR1_PMC1SEL_SH 25
69 #define MMCR1_PMC2SEL_SH 17
70 #define MMCR1_PMC3SEL_SH 9
71 #define MMCR1_PMC4SEL_SH 1
72 #define MMCR1_PMCSEL_SH(n) (MMCR1_PMC1SEL_SH - (n) * 8)
73 #define MMCR1_PMCSEL_MSK 0x7f
74
75 /*
76 * Bits in MMCRA
77 */
78
79 /*
80 * Layout of constraint bits:
81 * 6666555555555544444444443333333333222222222211111111110000000000
82 * 3210987654321098765432109876543210987654321098765432109876543210
83 * <><>[ ><><>< ><> [ >[ >[ >< >< >< >< ><><><><><><>
84 * T0T1 NC G0G1G2 G3 UC PS1PS2 B0 B1 B2 B3 P6P5P4P3P2P1
85 *
86 * T0 - TTM0 constraint
87 * 54-55: TTM0SEL value (0=FPU, 2=IFU, 3=ISU1) 0xc0_0000_0000_0000
88 *
89 * T1 - TTM1 constraint
90 * 52-53: TTM1SEL value (0=IDU, 3=GRS) 0x30_0000_0000_0000
91 *
92 * NC - number of counters
93 * 51: NC error 0x0008_0000_0000_0000
94 * 48-50: number of events needing PMC1-4 0x0007_0000_0000_0000
95 *
96 * G0..G3 - GRS mux constraints
97 * 46-47: GRS_L2SEL value
98 * 44-45: GRS_L3SEL value
99 * 41-44: GRS_MCSEL value
100 * 39-40: GRS_FABSEL value
101 * Note that these match up with their bit positions in MMCR1
102 *
103 * UC - unit constraint: can't have all three of FPU|IFU|ISU1, ISU0, IDU|GRS
104 * 37: UC3 error 0x20_0000_0000
105 * 36: FPU|IFU|ISU1 events needed 0x10_0000_0000
106 * 35: ISU0 events needed 0x08_0000_0000
107 * 34: IDU|GRS events needed 0x04_0000_0000
108 *
109 * PS1
110 * 33: PS1 error 0x2_0000_0000
111 * 31-32: count of events needing PMC1/2 0x1_8000_0000
112 *
113 * PS2
114 * 30: PS2 error 0x4000_0000
115 * 28-29: count of events needing PMC3/4 0x3000_0000
116 *
117 * B0
118 * 24-27: Byte 0 event source 0x0f00_0000
119 * Encoding as for the event code
120 *
121 * B1, B2, B3
122 * 20-23, 16-19, 12-15: Byte 1, 2, 3 event sources
123 *
124 * P1..P6
125 * 0-11: Count of events needing PMC1..PMC6
126 */
127
128 static const int grsel_shift[8] = {
129 MMCR1_GRS_L2SEL_SH, MMCR1_GRS_L2SEL_SH, MMCR1_GRS_L2SEL_SH,
130 MMCR1_GRS_L3SEL_SH, MMCR1_GRS_L3SEL_SH, MMCR1_GRS_L3SEL_SH,
131 MMCR1_GRS_MCSEL_SH, MMCR1_GRS_FABSEL_SH
132 };
133
134 /* Masks and values for using events from the various units */
135 static unsigned long unit_cons[PM_LASTUNIT+1][2] = {
136 [PM_FPU] = { 0xc0002000000000ul, 0x00001000000000ul },
137 [PM_ISU0] = { 0x00002000000000ul, 0x00000800000000ul },
138 [PM_ISU1] = { 0xc0002000000000ul, 0xc0001000000000ul },
139 [PM_IFU] = { 0xc0002000000000ul, 0x80001000000000ul },
140 [PM_IDU] = { 0x30002000000000ul, 0x00000400000000ul },
141 [PM_GRS] = { 0x30002000000000ul, 0x30000400000000ul },
142 };
143
144 static int power5_get_constraint(u64 event, unsigned long *maskp,
145 unsigned long *valp)
146 {
147 int pmc, byte, unit, sh;
148 int bit, fmask;
149 unsigned long mask = 0, value = 0;
150 int grp = -1;
151
152 pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
153 if (pmc) {
154 if (pmc > 6)
155 return -1;
156 sh = (pmc - 1) * 2;
157 mask |= 2 << sh;
158 value |= 1 << sh;
159 if (pmc <= 4)
160 grp = (pmc - 1) >> 1;
161 else if (event != 0x500009 && event != 0x600005)
162 return -1;
163 }
164 if (event & PM_BUSEVENT_MSK) {
165 unit = (event >> PM_UNIT_SH) & PM_UNIT_MSK;
166 if (unit > PM_LASTUNIT)
167 return -1;
168 if (unit == PM_ISU0_ALT)
169 unit = PM_ISU0;
170 mask |= unit_cons[unit][0];
171 value |= unit_cons[unit][1];
172 byte = (event >> PM_BYTE_SH) & PM_BYTE_MSK;
173 if (byte >= 4) {
174 if (unit != PM_LSU1)
175 return -1;
176 /* Map LSU1 low word (bytes 4-7) to unit LSU1+1 */
177 ++unit;
178 byte &= 3;
179 }
180 if (unit == PM_GRS) {
181 bit = event & 7;
182 fmask = (bit == 6)? 7: 3;
183 sh = grsel_shift[bit];
184 mask |= (unsigned long)fmask << sh;
185 value |= (unsigned long)((event >> PM_GRS_SH) & fmask)
186 << sh;
187 }
188 /*
189 * Bus events on bytes 0 and 2 can be counted
190 * on PMC1/2; bytes 1 and 3 on PMC3/4.
191 */
192 if (!pmc)
193 grp = byte & 1;
194 /* Set byte lane select field */
195 mask |= 0xfUL << (24 - 4 * byte);
196 value |= (unsigned long)unit << (24 - 4 * byte);
197 }
198 if (grp == 0) {
199 /* increment PMC1/2 field */
200 mask |= 0x200000000ul;
201 value |= 0x080000000ul;
202 } else if (grp == 1) {
203 /* increment PMC3/4 field */
204 mask |= 0x40000000ul;
205 value |= 0x10000000ul;
206 }
207 if (pmc < 5) {
208 /* need a counter from PMC1-4 set */
209 mask |= 0x8000000000000ul;
210 value |= 0x1000000000000ul;
211 }
212 *maskp = mask;
213 *valp = value;
214 return 0;
215 }
216
217 #define MAX_ALT 3 /* at most 3 alternatives for any event */
218
219 static const unsigned int event_alternatives[][MAX_ALT] = {
220 { 0x120e4, 0x400002 }, /* PM_GRP_DISP_REJECT */
221 { 0x410c7, 0x441084 }, /* PM_THRD_L2MISS_BOTH_CYC */
222 { 0x100005, 0x600005 }, /* PM_RUN_CYC */
223 { 0x100009, 0x200009, 0x500009 }, /* PM_INST_CMPL */
224 { 0x300009, 0x400009 }, /* PM_INST_DISP */
225 };
226
227 /*
228 * Scan the alternatives table for a match and return the
229 * index into the alternatives table if found, else -1.
230 */
231 static int find_alternative(u64 event)
232 {
233 int i, j;
234
235 for (i = 0; i < ARRAY_SIZE(event_alternatives); ++i) {
236 if (event < event_alternatives[i][0])
237 break;
238 for (j = 0; j < MAX_ALT && event_alternatives[i][j]; ++j)
239 if (event == event_alternatives[i][j])
240 return i;
241 }
242 return -1;
243 }
244
245 static const unsigned char bytedecode_alternatives[4][4] = {
246 /* PMC 1 */ { 0x21, 0x23, 0x25, 0x27 },
247 /* PMC 2 */ { 0x07, 0x17, 0x0e, 0x1e },
248 /* PMC 3 */ { 0x20, 0x22, 0x24, 0x26 },
249 /* PMC 4 */ { 0x07, 0x17, 0x0e, 0x1e }
250 };
251
252 /*
253 * Some direct events for decodes of event bus byte 3 have alternative
254 * PMCSEL values on other counters. This returns the alternative
255 * event code for those that do, or -1 otherwise.
256 */
257 static s64 find_alternative_bdecode(u64 event)
258 {
259 int pmc, altpmc, pp, j;
260
261 pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
262 if (pmc == 0 || pmc > 4)
263 return -1;
264 altpmc = 5 - pmc; /* 1 <-> 4, 2 <-> 3 */
265 pp = event & PM_PMCSEL_MSK;
266 for (j = 0; j < 4; ++j) {
267 if (bytedecode_alternatives[pmc - 1][j] == pp) {
268 return (event & ~(PM_PMC_MSKS | PM_PMCSEL_MSK)) |
269 (altpmc << PM_PMC_SH) |
270 bytedecode_alternatives[altpmc - 1][j];
271 }
272 }
273 return -1;
274 }
275
276 static int power5_get_alternatives(u64 event, unsigned int flags, u64 alt[])
277 {
278 int i, j, nalt = 1;
279 s64 ae;
280
281 alt[0] = event;
282 nalt = 1;
283 i = find_alternative(event);
284 if (i >= 0) {
285 for (j = 0; j < MAX_ALT; ++j) {
286 ae = event_alternatives[i][j];
287 if (ae && ae != event)
288 alt[nalt++] = ae;
289 }
290 } else {
291 ae = find_alternative_bdecode(event);
292 if (ae > 0)
293 alt[nalt++] = ae;
294 }
295 return nalt;
296 }
297
298 /*
299 * Map of which direct events on which PMCs are marked instruction events.
300 * Indexed by PMCSEL value, bit i (LE) set if PMC i is a marked event.
301 * Bit 0 is set if it is marked for all PMCs.
302 * The 0x80 bit indicates a byte decode PMCSEL value.
303 */
304 static unsigned char direct_event_is_marked[0x28] = {
305 0, /* 00 */
306 0x1f, /* 01 PM_IOPS_CMPL */
307 0x2, /* 02 PM_MRK_GRP_DISP */
308 0xe, /* 03 PM_MRK_ST_CMPL, PM_MRK_ST_GPS, PM_MRK_ST_CMPL_INT */
309 0, /* 04 */
310 0x1c, /* 05 PM_MRK_BRU_FIN, PM_MRK_INST_FIN, PM_MRK_CRU_FIN */
311 0x80, /* 06 */
312 0x80, /* 07 */
313 0, 0, 0,/* 08 - 0a */
314 0x18, /* 0b PM_THRESH_TIMEO, PM_MRK_GRP_TIMEO */
315 0, /* 0c */
316 0x80, /* 0d */
317 0x80, /* 0e */
318 0, /* 0f */
319 0, /* 10 */
320 0x14, /* 11 PM_MRK_GRP_BR_REDIR, PM_MRK_GRP_IC_MISS */
321 0, /* 12 */
322 0x10, /* 13 PM_MRK_GRP_CMPL */
323 0x1f, /* 14 PM_GRP_MRK, PM_MRK_{FXU,FPU,LSU}_FIN */
324 0x2, /* 15 PM_MRK_GRP_ISSUED */
325 0x80, /* 16 */
326 0x80, /* 17 */
327 0, 0, 0, 0, 0,
328 0x80, /* 1d */
329 0x80, /* 1e */
330 0, /* 1f */
331 0x80, /* 20 */
332 0x80, /* 21 */
333 0x80, /* 22 */
334 0x80, /* 23 */
335 0x80, /* 24 */
336 0x80, /* 25 */
337 0x80, /* 26 */
338 0x80, /* 27 */
339 };
340
341 /*
342 * Returns 1 if event counts things relating to marked instructions
343 * and thus needs the MMCRA_SAMPLE_ENABLE bit set, or 0 if not.
344 */
345 static int power5_marked_instr_event(u64 event)
346 {
347 int pmc, psel;
348 int bit, byte, unit;
349 u32 mask;
350
351 pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
352 psel = event & PM_PMCSEL_MSK;
353 if (pmc >= 5)
354 return 0;
355
356 bit = -1;
357 if (psel < sizeof(direct_event_is_marked)) {
358 if (direct_event_is_marked[psel] & (1 << pmc))
359 return 1;
360 if (direct_event_is_marked[psel] & 0x80)
361 bit = 4;
362 else if (psel == 0x08)
363 bit = pmc - 1;
364 else if (psel == 0x10)
365 bit = 4 - pmc;
366 else if (psel == 0x1b && (pmc == 1 || pmc == 3))
367 bit = 4;
368 } else if ((psel & 0x58) == 0x40)
369 bit = psel & 7;
370
371 if (!(event & PM_BUSEVENT_MSK))
372 return 0;
373
374 byte = (event >> PM_BYTE_SH) & PM_BYTE_MSK;
375 unit = (event >> PM_UNIT_SH) & PM_UNIT_MSK;
376 if (unit == PM_LSU0) {
377 /* byte 1 bits 0-7, byte 2 bits 0,2-4,6 */
378 mask = 0x5dff00;
379 } else if (unit == PM_LSU1 && byte >= 4) {
380 byte -= 4;
381 /* byte 4 bits 1,3,5,7, byte 5 bits 6-7, byte 7 bits 0-4,6 */
382 mask = 0x5f00c0aa;
383 } else
384 return 0;
385
386 return (mask >> (byte * 8 + bit)) & 1;
387 }
388
389 static int power5_compute_mmcr(u64 event[], int n_ev,
390 unsigned int hwc[], unsigned long mmcr[])
391 {
392 unsigned long mmcr1 = 0;
393 unsigned long mmcra = 0;
394 unsigned int pmc, unit, byte, psel;
395 unsigned int ttm, grp;
396 int i, isbus, bit, grsel;
397 unsigned int pmc_inuse = 0;
398 unsigned int pmc_grp_use[2];
399 unsigned char busbyte[4];
400 unsigned char unituse[16];
401 int ttmuse;
402
403 if (n_ev > 6)
404 return -1;
405
406 /* First pass to count resource use */
407 pmc_grp_use[0] = pmc_grp_use[1] = 0;
408 memset(busbyte, 0, sizeof(busbyte));
409 memset(unituse, 0, sizeof(unituse));
410 for (i = 0; i < n_ev; ++i) {
411 pmc = (event[i] >> PM_PMC_SH) & PM_PMC_MSK;
412 if (pmc) {
413 if (pmc > 6)
414 return -1;
415 if (pmc_inuse & (1 << (pmc - 1)))
416 return -1;
417 pmc_inuse |= 1 << (pmc - 1);
418 /* count 1/2 vs 3/4 use */
419 if (pmc <= 4)
420 ++pmc_grp_use[(pmc - 1) >> 1];
421 }
422 if (event[i] & PM_BUSEVENT_MSK) {
423 unit = (event[i] >> PM_UNIT_SH) & PM_UNIT_MSK;
424 byte = (event[i] >> PM_BYTE_SH) & PM_BYTE_MSK;
425 if (unit > PM_LASTUNIT)
426 return -1;
427 if (unit == PM_ISU0_ALT)
428 unit = PM_ISU0;
429 if (byte >= 4) {
430 if (unit != PM_LSU1)
431 return -1;
432 ++unit;
433 byte &= 3;
434 }
435 if (!pmc)
436 ++pmc_grp_use[byte & 1];
437 if (busbyte[byte] && busbyte[byte] != unit)
438 return -1;
439 busbyte[byte] = unit;
440 unituse[unit] = 1;
441 }
442 }
443 if (pmc_grp_use[0] > 2 || pmc_grp_use[1] > 2)
444 return -1;
445
446 /*
447 * Assign resources and set multiplexer selects.
448 *
449 * PM_ISU0 can go either on TTM0 or TTM1, but that's the only
450 * choice we have to deal with.
451 */
452 if (unituse[PM_ISU0] &
453 (unituse[PM_FPU] | unituse[PM_IFU] | unituse[PM_ISU1])) {
454 unituse[PM_ISU0_ALT] = 1; /* move ISU to TTM1 */
455 unituse[PM_ISU0] = 0;
456 }
457 /* Set TTM[01]SEL fields. */
458 ttmuse = 0;
459 for (i = PM_FPU; i <= PM_ISU1; ++i) {
460 if (!unituse[i])
461 continue;
462 if (ttmuse++)
463 return -1;
464 mmcr1 |= (unsigned long)i << MMCR1_TTM0SEL_SH;
465 }
466 ttmuse = 0;
467 for (; i <= PM_GRS; ++i) {
468 if (!unituse[i])
469 continue;
470 if (ttmuse++)
471 return -1;
472 mmcr1 |= (unsigned long)(i & 3) << MMCR1_TTM1SEL_SH;
473 }
474 if (ttmuse > 1)
475 return -1;
476
477 /* Set byte lane select fields, TTM[23]SEL and GRS_*SEL. */
478 for (byte = 0; byte < 4; ++byte) {
479 unit = busbyte[byte];
480 if (!unit)
481 continue;
482 if (unit == PM_ISU0 && unituse[PM_ISU0_ALT]) {
483 /* get ISU0 through TTM1 rather than TTM0 */
484 unit = PM_ISU0_ALT;
485 } else if (unit == PM_LSU1 + 1) {
486 /* select lower word of LSU1 for this byte */
487 mmcr1 |= 1ul << (MMCR1_TTM3SEL_SH + 3 - byte);
488 }
489 ttm = unit >> 2;
490 mmcr1 |= (unsigned long)ttm
491 << (MMCR1_TD_CP_DBG0SEL_SH - 2 * byte);
492 }
493
494 /* Second pass: assign PMCs, set PMCxSEL and PMCx_ADDER_SEL fields */
495 for (i = 0; i < n_ev; ++i) {
496 pmc = (event[i] >> PM_PMC_SH) & PM_PMC_MSK;
497 unit = (event[i] >> PM_UNIT_SH) & PM_UNIT_MSK;
498 byte = (event[i] >> PM_BYTE_SH) & PM_BYTE_MSK;
499 psel = event[i] & PM_PMCSEL_MSK;
500 isbus = event[i] & PM_BUSEVENT_MSK;
501 if (!pmc) {
502 /* Bus event or any-PMC direct event */
503 for (pmc = 0; pmc < 4; ++pmc) {
504 if (pmc_inuse & (1 << pmc))
505 continue;
506 grp = (pmc >> 1) & 1;
507 if (isbus) {
508 if (grp == (byte & 1))
509 break;
510 } else if (pmc_grp_use[grp] < 2) {
511 ++pmc_grp_use[grp];
512 break;
513 }
514 }
515 pmc_inuse |= 1 << pmc;
516 } else if (pmc <= 4) {
517 /* Direct event */
518 --pmc;
519 if ((psel == 8 || psel == 0x10) && isbus && (byte & 2))
520 /* add events on higher-numbered bus */
521 mmcr1 |= 1ul << (MMCR1_PMC1_ADDER_SEL_SH - pmc);
522 } else {
523 /* Instructions or run cycles on PMC5/6 */
524 --pmc;
525 }
526 if (isbus && unit == PM_GRS) {
527 bit = psel & 7;
528 grsel = (event[i] >> PM_GRS_SH) & PM_GRS_MSK;
529 mmcr1 |= (unsigned long)grsel << grsel_shift[bit];
530 }
531 if (power5_marked_instr_event(event[i]))
532 mmcra |= MMCRA_SAMPLE_ENABLE;
533 if (pmc <= 3)
534 mmcr1 |= psel << MMCR1_PMCSEL_SH(pmc);
535 hwc[i] = pmc;
536 }
537
538 /* Return MMCRx values */
539 mmcr[0] = 0;
540 if (pmc_inuse & 1)
541 mmcr[0] = MMCR0_PMC1CE;
542 if (pmc_inuse & 0x3e)
543 mmcr[0] |= MMCR0_PMCjCE;
544 mmcr[1] = mmcr1;
545 mmcr[2] = mmcra;
546 return 0;
547 }
548
549 static void power5_disable_pmc(unsigned int pmc, unsigned long mmcr[])
550 {
551 if (pmc <= 3)
552 mmcr[1] &= ~(0x7fUL << MMCR1_PMCSEL_SH(pmc));
553 }
554
555 static int power5_generic_events[] = {
556 [PERF_COUNT_HW_CPU_CYCLES] = 0xf,
557 [PERF_COUNT_HW_INSTRUCTIONS] = 0x100009,
558 [PERF_COUNT_HW_CACHE_REFERENCES] = 0x4c1090, /* LD_REF_L1 */
559 [PERF_COUNT_HW_CACHE_MISSES] = 0x3c1088, /* LD_MISS_L1 */
560 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x230e4, /* BR_ISSUED */
561 [PERF_COUNT_HW_BRANCH_MISSES] = 0x230e5, /* BR_MPRED_CR */
562 };
563
564 #define C(x) PERF_COUNT_HW_CACHE_##x
565
566 /*
567 * Table of generalized cache-related events.
568 * 0 means not supported, -1 means nonsensical, other values
569 * are event codes.
570 */
571 static int power5_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
572 [C(L1D)] = { /* RESULT_ACCESS RESULT_MISS */
573 [C(OP_READ)] = { 0x4c1090, 0x3c1088 },
574 [C(OP_WRITE)] = { 0x3c1090, 0xc10c3 },
575 [C(OP_PREFETCH)] = { 0xc70e7, 0 },
576 },
577 [C(L1I)] = { /* RESULT_ACCESS RESULT_MISS */
578 [C(OP_READ)] = { 0, 0 },
579 [C(OP_WRITE)] = { -1, -1 },
580 [C(OP_PREFETCH)] = { 0, 0 },
581 },
582 [C(LL)] = { /* RESULT_ACCESS RESULT_MISS */
583 [C(OP_READ)] = { 0, 0x3c309b },
584 [C(OP_WRITE)] = { 0, 0 },
585 [C(OP_PREFETCH)] = { 0xc50c3, 0 },
586 },
587 [C(DTLB)] = { /* RESULT_ACCESS RESULT_MISS */
588 [C(OP_READ)] = { 0x2c4090, 0x800c4 },
589 [C(OP_WRITE)] = { -1, -1 },
590 [C(OP_PREFETCH)] = { -1, -1 },
591 },
592 [C(ITLB)] = { /* RESULT_ACCESS RESULT_MISS */
593 [C(OP_READ)] = { 0, 0x800c0 },
594 [C(OP_WRITE)] = { -1, -1 },
595 [C(OP_PREFETCH)] = { -1, -1 },
596 },
597 [C(BPU)] = { /* RESULT_ACCESS RESULT_MISS */
598 [C(OP_READ)] = { 0x230e4, 0x230e5 },
599 [C(OP_WRITE)] = { -1, -1 },
600 [C(OP_PREFETCH)] = { -1, -1 },
601 },
602 };
603
604 static struct power_pmu power5_pmu = {
605 .name = "POWER5",
606 .n_counter = 6,
607 .max_alternatives = MAX_ALT,
608 .add_fields = 0x7000090000555ul,
609 .test_adder = 0x3000490000000ul,
610 .compute_mmcr = power5_compute_mmcr,
611 .get_constraint = power5_get_constraint,
612 .get_alternatives = power5_get_alternatives,
613 .disable_pmc = power5_disable_pmc,
614 .n_generic = ARRAY_SIZE(power5_generic_events),
615 .generic_events = power5_generic_events,
616 .cache_events = &power5_cache_events,
617 };
618
619 static int init_power5_pmu(void)
620 {
621 if (!cur_cpu_spec->oprofile_cpu_type ||
622 strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5"))
623 return -ENODEV;
624
625 return register_power_pmu(&power5_pmu);
626 }
627
628 arch_initcall(init_power5_pmu);
Linux for Ginger Game Console